I am getting the below error while transcoding videos automatically using nzbtomedia (https://github.com/clinton-hall/nzbToMedia/).
Transcoder returned:b"Unknown encoder 'libx264'\n" has failed
How do I install this encoder?
Raspbain (Raspberry PI)
Additional Info:
FFMPEG Version
ffmpeg version N-96192-g2ff687c17f Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8 (Raspbian 8.3.0-6+rpi1)
configuration:
libavutil 56. 38.100 / 56. 38.100
libavcodec 58. 65.100 / 58. 65.100
libavformat 58. 35.101 / 58. 35.101
libavdevice 58. 9.101 / 58. 9.101
libavfilter 7. 69.101 / 7. 69.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
ffmpeg -encoders | grep 264
ffmpeg version N-96192-g2ff687c17f Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8 (Raspbian 8.3.0-6+rpi1)
configuration:
libavutil 56. 38.100 / 56. 38.100
libavcodec 58. 65.100 / 58. 65.100
libavformat 58. 35.101 / 58. 35.101
libavdevice 58. 9.101 / 58. 9.101
libavfilter 7. 69.101 / 7. 69.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
V..... h264_v4l2m2m V4L2 mem2mem H.264 encoder wrapper (codec h264)
It appears you followed this ancient wiki guide that had you compile ffmpeg without libx264 enabled.
I'm guessing you are using Raspbian Buster which the official repository currently offers FFmpeg 4.1.4 with libx264 enabled. So uninstall the ffmpeg you compiled:
cd ~/ffmpeg
sudo make uninstall
Then install ffmpeg from the repository:
sudo apt install ffmpeg
Now when you run ffmpeg it should show --enable-libx264 in the output.
You may also see --enable-omx --enable-omx-rpi --enable-mmal which will allow hardware decoding/encoding of:
-c:v h264_omx) & decoding (-c:v h264_mmal)-c:v mpeg4_omx) & decoding (-c:v mpeg4_mmal)-c:v mpeg2_mmal)-c:v vc1_mmal)